Legion build - Mass Effect 2 (ME2)

By zanuffas
Last updated:
Legion build

In this post, I will go through the complete Legion build in Mass Effect 2 and Mass Effect 2 Legendary Edition. This includes, what skills to select, weapons, and how to use Legion the best.

Legion is a Geth that you will encounter during the middle/late part of the game. You will be able to take him on board and activate him. It will then join Shepard's crew on the mission. I definitely suggest trying out this companion as it quite unique compared to other party members.

The unfortunate part is that Legion will be available only at the end of the game, so try to use him as much as possible

Let's go through the build

Legion - Dead Eye build

This builds main purpose is to deal as much damage as possible. You will equip Legion with the strongest sniper rifle and take all skills that boost damage.

Squad point allocation

In this section, I will go through how the squad points should be allocated for the Legion build.

Legion build skills

Power name Evolution Squad Points
AI hacking iconAI Hacking - 3
Combat drone iconCombat Drone - 6
Drell assassin iconGeth Infiltrator Geth Assassin 10
Geth shield boost iconGeth Shield Boost Improved Geth Shield Boost 10

Important! You will most probably obtain Legion mid to late game when Shepard will be level 15+. So I will list skills by which priority you should get them

Skill acquisition priority

Due to how the game works and Legion being a late-game companion, here is how you should allocate your skills. All of them are listed in priority top - get the first one, bottom - get the last one.

Number of points Skill Description
10 Drell assassin iconGeth Infiltrator Upgrade to Geth Assassin. Legion has an extremely good passive ability. It shortens cooldowns and increases damage by 25%
10 Geth shield boost iconGeth Shield Boost Get Improved Geth Shield Boost upgrade. This ability will give a huge bonus to shields, allowing Legion to tank enemies. Moreover, the upgrade will increase its damage by 10%. Moreover, this has 12 seconds cooldown without Geth Infiltrator.
3 AI hacking iconAI Hacking I am not a fan of this skill as it only works against synthetic enemies. However, we take it to unlock AI Hacking
6 Combat drone iconCombat Drone This skill is a double-edged sword, but I suggest using it on Insanity difficulty. It summons a drone that can damage enemies, but its main point would be to distract them, giving some room to breathe for the Shepard party. The drawback is that it has a 30-second cooldown, so only use it after Legion activates Geth Shield Boost.

I think now the main point is to cover what equipment to use and how to best play Legion.


In this section, I will go through what tactics you should use for Legion:

  • Use Combat Drone to distract Enemies, but only Geth Shield Boost has been activated
  • Have a companion who has Squad ammo upgrades. For Examples Squad Warp Ammo of Jack is extremely useful in raising Legion's damage on every shot.
  • Miranda is another good companion to have as she boosts party members' weapon damage.
  • Legion should be able to take out normal enemies with one shot if M-98 Widow is equipped, even on Insanity.
  • This build can also tank enemies as the Geth Shield Boost will raise Legion's shield to high levels.


In this section, I will go through what equipment Legion can use. It has two main weapons to choose from Sniper Rifles and Assault Rifles.

Sniper Rifles

As the build's main idea is to deal as much damage as possible we will equip Legion with the strongest Sniper Rifle. Although it would seem that it would be M-98 Widow.

M-98 Widow

You can acquire it in Collector Ship Mission or once you recruit Legion. I loved how Legion would one shot some weaker enemies with it.

Weapon name Accuracy Damage multiplier (armor/shields/barriers) Base damage Ammo per clip Fire Rate
M-98 Widow High x1.5/x1.0/x1.0 368.3 1 Low

However, there is one BUT. Due to a bug in the game Incisor is much stronger. Here are some Incisor damage calculations. So you are better of using it than M-98 Widow

Weapon name Accuracy Damage multiplier (armor/shields/barriers) Base damage Ammo per clip Fire Rate
M-29 Incisor High x1.25/x1.25/x1.25 53.6 per bullet 15 600 RPM

Assault Rifles

Assault Rifles for Legion are optional. I suggest M-96 Mattock. It is the most well-optimized Assault Rifle.

M-96 mattock heavy rifle

However, I also recommend Geth Assault Rifle if you are playing on Hard or Insanity difficulty

Weapon name Accuracy Damage multiplier (armor/shields/barriers) Base damage Ammo per clip Fire Rate
M-96 Mattock High x1.3/x1.2/x1.2 50.4 16 750 RPM
Geth Pulse Rifle Moderate x1.15/x1.35/x1.35 10.8 40 1000 RPM

Geth Pulse Rifle fast fire rate and is effective against shields and Barriers.


Thank you for reading this post and I hope it will make you better at building Legion on Mass Effect 2 and Mass Effect 2 Legendary Edition. Although this companion joins the crew, close to the ending it is still an interesting addition that you can take on the last mission.

Feel free to leave a comment below!

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